Professor chadwick evaluated a graduate student's research proposal negatively simply because he had heard a rumor about the student's incompetence. when later informed that the rumor had been patently false, the professor's assessment of the student's research proposal remained almost as negative as it was originally.
this best illustrates:

a. the representativeness heuristic.
b. the availability heuristic.
c. belief perseverance.
d. framing.

c. belief perseverance.

Explanation:

Belief perseverance: The term belief perseverance is also referred to as belief persistence. It is defined as an individual's inability to alter or change his or her belief even after receiving some new facts or information that hinders the previously existing beliefs.

An individual experiencing belief perseverance stick to their thoughts and beliefs even after encountering he or she shouldn't be doing that.

In the question above, the statement signifies the belief perseverance.

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx